Pipe.



PATENTED APR. 24, 1906.

0. ELKIN.

PIPE. APPLICATION FILED JULY 12. 1005.

PATENT OFFICE.

CHARLES ELKIN, or NEW YORK, N. Y.

PIPE.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed July 12. 1905- Serial No. 269,280.

To all whom it may concern.-

Be it known that I, CHARLES ELKIN, a ci-tizen of the United States,residing at New York, in the county of New York and State of New York,have invented or discovered certain new and useful Improvements inPipes, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention has for its object to provide a tobacco-smoking pipe ofsuch construction that the smoke drawn from the bowl of the pipe will bewell cooled by the time it reaches the mouth of the smoker, so that thedisagreeable and injurious efiects resulting from the impact of hotsmoke against the tongue or other parts of the mouth of the smoker willbe altogether avoided.

The invention comprises certain improvements on the pipe covered byUnited States Patent No. 767,804, granted August 15, 1904.

The present improved pipe preferably comprises three or moresmoke-coolin chambers, arranged, as hereinafter set fort in thesmoke-passage of the pipe and each of which chambers has a contractedinlet, so that a cross-sectional area of each of said chambers is ofvery much greater extent than the area of the inlet thereto, and thus asthe smoke is drawn to each of the cooling-chambers it will be cooled byrarefaction, as also by a more or less whirling or tumbling efiect towhich it will be subjected in each of the saidchambers.

In the accompanying drawings, Figure 1 is a sectional view of a pipeembodying the present invention, and Fig. 2 illustratesa modificationthereof.

Referring to the drawings, a denotes the bowl of the pi e, in the stemportion a of which is forme the chamber 1), communicating by acontracted passage-way or duct 0 with the chamber of the bowl. Thechamber 1) is preferably a straight bore, such as can be made with anordinary drill or bit, and the passa e-way or duct 0, which intersectsthe charm er I) at an acute angle, is preferabl so inclined and locatedthat it can be made y a drill inserted from the upper or outerend of thechamber 5. In other words, the extended line of the passage-way 0 willbe within the walls of the upper or outer end of the oham ber b.

The stem proper, Z, of the pipe has a contracted inlet :1, opening intothe upwardl -expandin ber w ch communicates with thepassagesmoke-cooling or rarefaction c amway leading to the finalsmoke-cooling or rare action chamber g, having a contracted inlet h. Thewalls of the chamber 6 are preferably made as thin as is practicable, sothat the rarefied smoke in said chamber will be cooled as much aspossible from the cooler outside air, and thus these cooler Walls willact as a condenser and a deposit of injurious substances, comprisinpercenta es of nicotin and oxalic acid, will be formed on said walls andwill run down into the chamber b, from which it may be readily removedby taking out the pipe-stem Z. The final smoke-cool ing chamber 9 ispreferably formed in a removable cap provided at its upper side onlywith smoke-exit'holes i, and in this respect the present pipe is likethat covered by United States Patent No. 7 67,804, above referred to,although the form of this chamber g, as also the form of the tip 7' towhich the cap "L, screwed or otherwise attached, may be somewhat varied,although the tapered. extreme end of said tip is preferred.

The stem of the pipe is preferably provided just forward of its mouthpiece or tip with an air-inlet hole k, whichis sufficiently near themouthpiece, so that it may be covered by the lip of the smoker, ifdesired, or may be left open for the entrance of a small amount of airto cool thesmoke. The stem of the pipe is also preferably provided atits lower portion, above the chamber 6, with a second air-inlet hole m,which, at the pleasure of the smoker, may be left open for the entranceof air to cool the smoke or may be covered by the finger of the smoker,as is deemed preferable. In use, however, it will be found advantageousto leave one, or both, of the airinlet holes m open for the ingress of asmall quantity of air to cool and dilute the smoke, and thus augment thecooling effects roduced by the three rarefaction or coo ing chambers b,e, and g. The chamber 1) also serves as a trap, as will also the chamber9, so

that nicotin and other injurious deposits from the smoke will-be safelyexcluded from the mouth of the smoker. The chamber g, having smokeexitorifices only in its upper wall, will receive little or no saliva fromthe mouth of the smoker, and thus clogging of the smoke-passage in theipe-stem from this cause will be avoided. T e chamber e is u wardlyexpandin or of inverted conical form.

In the modifie form of the invention illustrated in Fi 2 an additionalcooling or rarefying cham er is provided by the stem-secaltogether tion0 between the chamber 1) in the stem part of the bowl and the chamber 6in the pipe-stem proper, Z, this additional cooling or rarefying chamberpreferably comprising the conical or tapered part p and the globularpart 9. Still other cooling or rarefying chambers might be added, ifdesired, as will be understood, without departing from the essence ofthe invention.

In the use of the pipe constructed with three or more rarefaction orcooling chambers, as herein described, the hot smoke, which when itfirst issues from the chamber of the bowl is at a temperature ofapproximatelyAEOO Fahrenheit, will be, according to the temperature ofthe outside atmosphere, so cooled that when it finally issues 1nto themouth of the smoker it will be reduced to a temperature near or below 90Fahrenheit, and thus the injurious and disagreeable efi'ects resultingfrom the reception of hot smoke into the mouth of the smoker, andparticularly against the tongue, will be avoided. This result is duepartly to the rarefaction of the smoke in each of the cooling-chambers,in which most of it is momentarily detained and more or less whirledabout, andpartly due to the cooling effect of ,the air entering one orboth of the inlet orifices or holes is m.

Having thus described my invention, I claim and desire to securebyLetters Patent 1. A pipe having the stem of its bowl portion providedwith a smoke-cooling straightbore chamber 6 and with a contractedpassage-way or duct 0 intersecting said cham-- her 6 above the bottom ofthe latter, said pipe having a stem in which is formed theupwardly-expanding or conical chamber 6 with a contracted inlet, and themouthpiece of said stem having the chamber 9 with smokeeXit orifices atits top only.

2. A pipe provided in the smoke passage- Way between the chamber of thebowl and the smoke-discharge outlet at the mouth piece with three ormore smoke-cooling or rarefaction chambers each having a contractedinlet, one of said chambers being formed in the stem portion of saidbowl, one, at least, of said chambers being formed in the stem proper ofthe pipe, and one at the mouthpiece or smoke-exit end of the pipe.

3. A pipe provided in the smoke passageway between the chamber of thebowl and the smoke-discharge outlet at the mouthpiece with three or moresmoke-cooling or also the air-inlet hole m rarefaction chambers eachhaving a contracted inlet, one of said chambers being formed in the stemportion of said bowl, one, at least, of said chambers being formed inthe stem proper of the pipe, and one at the mouthpiece or smoke-exit endof the pipe,

formed in the stem portion'of the bowl, one,-

at least, of said chambers being formed in the stem proper of the pipe,and one at the mouthpiece or smoke-exit end of the pipe, the stem ofsaid pipe being provided at its at the mouthlower part or adjacent thesaidbowl with an I air-inlet hole, and said stem having also anair-inlet hole adjacent the said-mouthpiece. 5. A pipe having the stemof its bowl portion' provided with a smoke-cooling straightbore chamber5 and with a, contracted passage-way or duct 0 intersecting said chamber6 above the bottom of the latter, said pipe having a stem in which isformedthe up:

wardly-expanding or conical chamber 6 with a contracted inlet, and themouthpiece of said stem having the chamber g with smokeexit orifices atits top only'and the said stern being provided, adjacent saidmouthpiece, with an air-inlet hole r 6. A pipe having the stem of itsbowl portion'provided with a smoke-cooling straightbore chamber 6 andwith a contracted passage-way or diict c intersecting said chamber 6above the bottom of the latter, said pipe having a stem in which isformed the upwardly-expanding or conical chamber e with a contractedinlet, and the mouthpiece of said stem having the chamber 9 withsmokeexit orifices at its top only, and the said stem being provided,adjacent said mouthpiece, with an air-inlet hole 70, and sail stemhaving adjacent the bowl portion of the pipe,

In testimony whereof I affix my presence of two witnesses.

'OHAS. ELKIN.

Witnesses: I

R. F. GARRETSON, MICHAEL SMITH.

signature IOCl IOR

